UPDATE 2:30 p.m. EST: NBC is reporting that one TSA agent was killed and three others wounded. Airport police shot and may have killed the gunman at the scene. The shooter, whose identity has not been confirmed, was taken into custody after being shot.

A gunman opened fire at Terminal 3 at Los Angeles International Airport (LAX) on Friday morning. The terminal has been evacuated and authorities are dealing with what they call a "multi-patient incident."